“With heavy hearts we regret to confirm that LVMPD K-9 Nicky was killed in the line of duty today,” the Las Vegas Metropolitan Police Department said on Twitter about 1:45 p.m. No other officers were injured, KSNV reported.

Few details were immediately available about the shooting, which the department said happened before 12:40 p.m. in the 9800 block of Fast Elk Street. The Las Vegas Review Journal described the incident as a “shootout.”

The male K-9 had returned to active duty in early March after being stabbed with a machete during a police standoff in February, the Review-Journal reported.